Fei Guo's research while affiliated with Nanjing Normal University and other places

... The samples were then grouped according to the concentration of Chla S and input into the ALGOmass . The results show that the accuracy of ALGO-TN mass and ALGO-TP mass showed an obvious downward trend with an increase in Chla S concentration ( Fig. 8e and f), which indicates that the increase in Chla S concentration increases the uncertainty of both ALGO-TN mass and ALGO-TP mass , which may be due to vertical movement changes after the increase in phytoplankton (Li et al., 2022;Zhu et al., 2018), resulting in changes in the vertical distribution of nutrients. The increase in TN S and TP S concentrations leads to a significant increase in RMSE, but R 2 has no obvious change trend ( Fig. 8g and h) because the increase in surface nutrient concentration will increase the total mass of nutrients in the water column. ...

... Accurate predictions rely on numerical models and precise typhoon data. Studies like [25][26][27][28][29][43][44][45][46] have examined typhoon tracks and their effects on coastal surges, revealing that surge response correlates with typhoon intensity. As the typhoon's wind speed increases, the surge tends to rise linearly. ...

... Jiangsu Province is located in the Yangtze River Delta of China, with densely distributed rivers and lakes, and a subtropical monsoon climate with an average winter temperature below 10 • C. According to the 2020 National Ecological Environment Quality Brief Situation, Taihu Lake, the largest lake in Jiangsu Province, is mildly eutrophic, with the main pollution index being total phosphorus (TP). The TP found in Taihu Lake is mainly from industrial, agricultural and domestic sewage (Lin et al., 2021;Bian et al., 2021), despite sewage discharge meeting the Grade II limit value (3.0 mg L − 1 : GB, 18918-2002) for municipal wastewater treatment plants. In this study, we aimed to 1) explore the feasibility of H. vulgaris in replacing M. aquaticum for phosphorus removal in winter and 2) investigate the potential mechanism associated with phosphorus removal from water by the two submerged plants in a low-temperature environment. ...

... At present, groundwater level prediction models are divided into deterministic and stochastic models. The latter mainly include time series models and neural network models (Guo et al. 2021;Tao et al. 2022). In comparison, the former can provide an overall picture of groundwater movement at a particular scale and accuracy and can better understand the physical processes and mechanisms in groundwater systems, among which the more widely used are Visual MODFLOW (Chakraborty et al. 2019;Lv et al. 2022) and FEFLOW (Pham et al. 2019). ...

... Estuarine islands, situated between terrestrial ecosystem and sea ecosystem, share similar characteristics and pressures to them. Referring to the relevant research [7,15,46] and combined with field research [47], we identified that flood disaster [4,48], storm surge [49], saltwater intrusion [44], and land use intensity disturbed by human activities [15,50] were the main pressures on estuarine islands. Estuarine islands, located on the low-lying terrain affected by strange airflow and wind [9], are vulnerable to sea level rise caused by climate change and extreme climate. ...

... In addition, inspired by Michael Batty's (1997) virtual geography theory, the concept of the virtual geographic environment (VGE) was proposed in 1998 and used in various applications (Dang et al., 2021;Lin et al., 2013;Luo et al., 2021). It has been widely used for disaster phenomenon simulation and multi-dimensional visualization, contributing to a deeper understanding of the real disaster environment (Ding et al., 2015;Guo et al., 2021;Lin et al., 2013;Pirasteh, Shamsipour, Liu, Zhu, & Chengming, 2020). Nevertheless, the current representation of disaster information has remained a challenge and a hot topic among researchers. ...

... Water erosion affects 1094 Mha of land area globally (Renard et al. 1996;Lal 2003;Wischmeier and Smith 1978). Soil erosion accelerated by human activities (e.g., deforestation, land use changes, unsuitable agricultural practices, etc.) (Thomas et al. 2018) and sediment delivery can be reduced water quality, increasing the siltation of the reservoir, impact the agricultural crops, and damage to the ecosystem services, and it is a serious threat for the sustainable management of the catchments (Liu et al. 2015;Koiter et al. 2013;Park et al. 2011;Guo et al. 2021;Lal 2018;Owens et al. 2016;Collins et al. 2020). Therefore, mitigation of sediment effects -as a distributed or non-point pollution source in the catchments -requires reliable provenance information (Pulley and Collins 2018). ...

... Prediction of the inundation depth hydrograph is crucial for emergency managers to understand how flooding will develop and recede and enable timely decisions on mitigations and evacuations as the storm passes [67]. A quantity of storm surge models has been applied to accurately simulate hurricane inundation depths, for example, Delft 3D [68], ADCIRC [69], and FVCOM [70]. Despite the advanced understanding of the physics of coastal inundations, such simulation requires huge computational resources, and fitting ML models with complex spatio-temporal high-dimensional variables constitutes a major challenge [51]. ...

... The main influencing factors of inland lake water environments include suspended sediments, plankton and dissolved organic matter. As one of the most important factors affecting the water environment, suspended sediments are carriers of various pollutants and are closely related to the migration and interaction migration and interaction of those pollutants (Wu et al. 2012;Wei et al. 2019;Zhang et al. 2019). Because of the obvious effects of wind and waves on sediments, sediments are easily resuspended, providing living environments for algae and promoting their growth. ...

... The main influencing factors of inland lake water environments include suspended sediments, plankton and dissolved organic matter. As one of the most important factors affecting the water environment, suspended sediments are the carriers of various pollutant migration and interaction (Wu et al., 2012;Wei et al., 2019;Zhang et al., 2016Zhang et al., , 2019. Because of the obvious effect of wind and wave on sediments, suspended matter is easy to appear resuspension, which provides the living environments for algae and promotes their growth. ...